Cleaning

diff --git a/AdventOfCode2017/Day14.fs b/AdventOfCode2017/Day14.fs
index 809472f..0bf32b2 100644 (file)
--- a/AdventOfCode2017/Day14.fs
+++ b/AdventOfCode2017/Day14.fs
@@ -1,27 +1,26 @@
-module AdventOfCode2017.Day14
+    module AdventOfCode2017.Day14
 
-let hash = Day10.knotHash2Encoding (fun i -> System.Convert.ToString(i, 2).PadLeft(8, '0'))
+    let hash = Day10.knotHash2Encoding (fun i -> System.Convert.ToString(i, 2).PadLeft(8, '0'))
 
-let buildMatrix (input : string) : bool[,] =
-    let mat = Array2D.zeroCreate 128 128
-    for i = 0 to 127 do
-        input + "-" + (string i) |> hash |> Seq.iteri (fun j c -> if c = '1' then mat.[i, j] <- true)
-    mat
+    let buildMatrix (input : string) : bool[,] =
+        let mat = Array2D.zeroCreate 128 128
+        for i = 0 to 127 do
+            input + "-" + (string i) |> hash |> Seq.iteri (fun j c -> if c = '1' then mat.[i, j] <- true)
+        mat
 
-let nbOfUsedSquares (input : string) =
-    let mutable i = 0
-    buildMatrix input |> Array2D.iter (fun b -> if b then i <- i + 1)
-    i
+    let nbOfUsedSquares (input : string) =
+        let mutable i = 0
+        buildMatrix input |> Array2D.iter (fun b -> if b then i <- i + 1)
+        i
 
-let nbOfConnectedRegions (input : string) =
-    let m = buildMatrix input
+    let nbOfConnectedRegions (input : string) =
+        let m = buildMatrix input
 
-    let rec remove i j =
-        if i >= 0 && i < 128 && j >= 0 && j < 128 && m.[i, j] then
-            m.[i, j] <- false
-            (remove (i + 1) j, remove (i - 1) j, remove i (j + 1), remove i (j - 1)) |> ignore
-            1
-        else
-            0
+        let rec remove i j =
+            if i >= 0 && i < 128 && j >= 0 && j < 128 && m.[i, j] then
+                m.[i, j] <- false
+                1 + remove (i + 1) j * remove (i - 1) j * remove i (j + 1) * remove i (j - 1)
+            else
+                0
 
-    seq { for i in 0 .. 127 do for j in 0 .. 127 -> remove i j } |> Seq.sum
\ No newline at end of file
+        seq { for i in 0 .. 127 do for j in 0 .. 127 -> remove i j } |> Seq.sum
\ No newline at end of file